The Patent Finder
US

Tunable Breakdown Voltage RF Fet Devices

US 10,790,369 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Sep 29, 2024 on the fee record · High confidence

First maintenance fee unpaid; grace period ended.

Filed Jul 31, 2018 as application 16/050,230 · Granted Sep 29, 2020
Base term, 20 years from filing
Today
Lapsed Sep 29, 2024
2014 2034
Clock starts
Jun 10, 2014
No longer in force
Sep 29, 2024
Granted
Sep 29, 2020
Term would have run to
Jun 10, 2034
base term after the term ends Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
0 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
8
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Jun 10, 2034: its 20-year base term, with no adjustment for prosecution delay. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jun 10, 2014, when application 14/300,884, the earliest non-provisional in its chain, was filed (this one was filed Jul 31, 2018)Jun 10, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidlapsed Sep 29, 2024High confidence
Computed term endThe steps above, in orderSep 29, 2024High confidence

This family

US 10,038,063Lapsed on the fee record
Jul 2022
Jul 2022
US 10,109,716Lapsed on the fee record
Oct 2026
Oct 2026
US 10,090,391Lapsed on the fee record
Oct 2026
Oct 2026
US 10,629,692Lapsed on the fee record
Apr 2024
Apr 2024
US 10,680,074Lapsed on the fee record
Jun 2024
Jun 2024
US 10,770,557Lapsed on the fee record
Sep 2024
Sep 2024
US 10,804,364Lapsed on the fee record
Oct 2024
Oct 2024
US 10,790,369this patent
Sep 2024
Sep 2024
The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Jul 31, 2018
Reel 46511, frame 560
Jain, Vibhor; Liu, Qizhi; Pekarik, John J.International Business Machines CorporationAssignment of Assignor's Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited